On Sat, Apr 26, 2014 at 1:58 PM, Peter Geoghegan <p...@heroku.com> wrote: > The 2Q paper also suggests a correlated reference period.
I withdraw this. 2Q in fact does not have such a parameter, while LRU-K does. But the other major system I mentioned very explicitly has a configurable delay that serves this exact purpose. This "prevents a burst of pins on a buffer counting as many touches". The point is that this approach is quite feasible, and may even be the best way of addressing the general problem of correlated references. -- Peter Geoghegan -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
